package com.kuang.lock8;

import java.util.concurrent.TimeUnit;

public class Test1 {

        public static void main(String[] args) {
            Phone phone = new Phone();
//锁的存在
            new Thread(()->{
                phone.sendSms();
            },"A").start();
// 捕获
            try {
                TimeUnit.SECONDS.sleep(1);
            } catch (InterruptedException e) {e.printStackTrace();
            }
            new Thread(()->{
                phone.call();
            },"B").start();
        }
    }
    class Phone{
        // synchronized 锁的对象是方法的调用者！、
// 两个方法用的是同一个锁，谁先拿到谁执行！
        public synchronized void sendSms(){
            try {
                TimeUnit.SECONDS.sleep(4);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("发短信");
        }
        public synchronized void call(){
            System.out.println("打电话");
        }
}
